Rtoebt ignatius jtaerell



R. I. FARRELL AUTOMATIC GAT June 28, 9

Filed Feb. 10. 1926 Patented June 28, 1927.

AU'lOll/[ATIC GATE.

Application filed February invention relates to r" automatic described in the prose; specificad illustrated in the accompanying drawings that term part oi the The invention consists essentially of the novel mm .s oi constructimi pointed out broadly and ecilically in the claims for novelty followdig a descrip ion containing an explanation in detail of an acceptable form oi the invention.

The objects of the invention are to avoid the many accidents that happen at railway crossings; to facilitate the closifg and opening of the across roadway at a level crossing coincidently with the approach and departure ol the railway train; to apply the operating mechanism to gates in various places; and to provide a simple and etfective operating mechanism for automatically closing and opening the gate.

In the drawings, Figure 1 is a vert cal sectional view disclosing the operating mechanism.

Figure 2 is a plan view showing a railway and intersecting road and gates.

15 igure 3 is a sectional detail of the trlp arm.

Figure l is a plan view showing a detail of the trip arm.

Figure 5 is a side view modification of the trip arm.

Like numerals of reference indicate corres 'i'onding parts in the various figures.

Referring to the drawings, the numerals and 11 indicate tubular posts joined at the upper end by the tubular bridge 12 within which the rocker arm 13 is centrally pivoted at 14.

At one end the rocker arm 13 carries the weight 15 pivotally suspended by the rod 16 sliding in the bracket 17 within the tubular post 11. At the other end the rocker arm 13 is pivotally secured to the link 18, which operatively connects it to the lever 19.

The lever 19 is pivotally supported intermediate of its height from the wall of the tubular post 10, by the pivot bar 20, the latter being pivotally secured in the bracket 21 in lazy tong formation, an inner end bar 25 being secured at its lower end to the lever 19 by the pivot 26 and the other inner end bar 27 being pivotally secured to the fixed bracket 28, therefore by lowering the 10, 1926. Serial No. 37,236.

lever 19 the lazy tong bars are drawn together which opens the gate and by raising the lever 19 the lazy tong bars are spread, which closes the gate.

The operation of the lever ll is entirely by weight. the weight 15 drawing it up wardly through the rocker arm 13 and linlc 18, while the weight 29 mounted on T head 30 moves said lever downwardly.

The weight is suspended from one end of the cr arm 81, which is strung around suitable pulleys, and pulled to lift the weight from the head 3 for the upward movement of the lever 19 already explained.

The h t is beve led at the upper side i e the spring latch 36 on the upwarr inoveme t of the lever 19 and push said latch out of the way, so that it can return ano engage the underside of the lug 3 L and thus hold the weight 29 to its raised position, while the gate is closed, the said latch 36 being operated by pull on the cable 37 secured to said lat-ch.

The semaphore 38 is pivotally secured to the central bracket 39 and is pivotally connected by the rod 40 to the rocker arm 13, so that at each upward movement of the lever 19 to close the gate, the semaphore 86 will be moved downwardly into a warning position. Similarly the semaphore 1-1 pivoted to the bracket and lever 19 will be moved from its housing 4.3 on the upward movement of the lever19. A

The semaphore 414 on the opposite side of the gate structure is contained in the housing and pivoted in the bracket 46 and operated by the centrally pivoted arm 47 and connecting rod 4.8 to the rocker arm 13.

It will now be seen that all the operating mechanism is supplied in the parts described, except the means for pulling the cables 33 and 37 and this may be varied according to the facilities at hand. Often electrical means are at hand, especially where signal systems are in operation, but the simplest mechanical means will be described herein and this comprises a trip arm 4-9 supported on a post 50, and having the pulleys 51 and 52 for one or other ol' the aforesaid cables as the case may be.

The trip head 53 of the arm 49 is furnished with a roller 54'and a stem 54 pivotally secured in the stationary part 55 of the arm which is slotted accordingly, said stem terminating at its inner end in a smaller head 56 the latter being held to its outer position in box 57 by the spring 58, the fixed ring 59 for the cable beiwg secured to the minor head 56 in alignment with the pulley 51.

The trip head 53 is engaged by any suitable contrivance from the train, and as the train approaches the crossing the head 53 is lifted and this pulls on the cable 33 which raises the weight 29 and allows the weight 15 through the rocker arm 13 to move the lever 19 in an upward direction and this spread the layy tong bars ot' the gates until the gate is closed.

As the train leaves the crossing, another form ct trip arm is operated to pull the cable and this withdraws the spring latch 36 from its engagement from the lever 19 permitting the movement or the latter downwardly so that the lazy tong bars oi? the gate are folded to their contracti-id position, which is the open position of the gate.

This trip arm. 60 is supp rted by the post 61 and is pivoted in the rigid .arm 62, the trip head. 63 being held by the spring 64 and the tail 5 being attached to the cable 37 so that on the contact ot the rigid flag ()6 or other projection with the head (33 the latch will be operated as described and. drop the weight on the lever 19. On the other side of the gateway the guides extending outwardly from the post 11 and indicated by the numerals 67 and 68 receive the gate when it is shot out from the other side and absolutely prevent any chance of the said gate shooting around and beyond the post.

W hat I claim isz 1. In a gate, a plurality of crossed bars pivotally secured to operate in lazy tong fashion, an anchoring bracket pivotally secured to an end bar of said gate, avertical lever pivotally secured to the coact-ing end bar, a latch mechanism connected with said lever, a weight bearing on the lever, a pivoted cross arm operatively connected with said lever, and a weight connected with said CI'OSS 81TH.

2. In a gate, a plurality of crossed bars pivotally secured to operate in lazy tong fashion, an anchoring bracket pivotally secured to an end bar of said gate, vertical lever pivotally secured to thecoacting end bar, a spring latch engaging said lever, a weight bearing on the lever, a rocker arm suspending said weight, a pivoted cross arm connected to said lever, and a weight connected to the cross arm.

3. in a gate, a plurality of crossed bars pivotally secured to operate in lazy tong fashion, an anchoring bracket pivotally secured to an end bar of said gate, a vertical lever pivotall secured to the coacting end bar, a ate frame having a tubular post adapted to contain said lever and a cross arm connected with said lever and pivoted in the frame, weight bearing on s: id lever, an operating member for said weight, a spring latch engaging the lever, a weight suspended trom said cross arm and cables secured to said latch and to said operating member.

4-. In a gate, 2 plurality 0t crossed bars pivotally se ered to operate in lazy tong fashion, an anchoring bracket pivotally secured. to an end bar of said gate, a vertical. lever pivotally secured to the coacting end bar, a pivoted member, a weight suspended from said pivoted member and bearing on said vertical lever, a cable secured to said member for operating the weight, a spring latch engaging the lever, a cable secured to said latch for releasing the lever, and trip arms termed of rigid and pivoted parts, the latter parts being spring held and having the inner ends secured to the cables respectively, and a cross arm operatively connected to said vertical lever at one end, pivoted centrally and having a weight at the other end.

Signed at Montreal, Canada, this 25th day of January 1926.

RUPERT IGNATIUS FARRELL. 

